EP0889307B1 - Bildgebendes Spektrometer - Google Patents
Bildgebendes Spektrometer Download PDFInfo
- Publication number
- EP0889307B1 EP0889307B1 EP98250198A EP98250198A EP0889307B1 EP 0889307 B1 EP0889307 B1 EP 0889307B1 EP 98250198 A EP98250198 A EP 98250198A EP 98250198 A EP98250198 A EP 98250198A EP 0889307 B1 EP0889307 B1 EP 0889307B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spectral
- imaging spectrometer
- optical detector
- microlens array
- filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
- G01J3/36—Investigating two or more bands of a spectrum by separate detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0218—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using optical fibers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
- G02B6/06—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres the relative position of the fibres being the same at both ends, e.g. for transporting images
Definitions
- the invention relates to an imaging spectrometer, in particular for the Use in endoscopes, surgical microscopes and colposcopes Diagnostics of body tissues.
- WO-A-90/10219 and WO-A-86/02730 is an endoscopic imaging system known for tumor diagnosis.
- the light of a fiber bundle split into four beam paths. In every ray path a different color filter arranged. Behind the color filters are the Beam paths imaged on an intensified CCD camera.
- the digital Image is displayed on a screen that detects a false color image.
- a device for simultaneous analysis of the Spectrum of an object known in which the radiation of an object by means of a collection optics in a fiber optic cross-section converter is coupled.
- the almost linear output radiation is by means of a collimator lens is mapped onto a diffraction grating and spectrally broken down and via further optics onto a matrix-shaped optical detector displayed.
- DE 196 16 176 A1 describes a device for the detection of Properties of moving objects with one with a filter arrangement provided detector arrangement for recording and exposure of images the objects in different wavelength ranges, a memory for Save the wavelength-dependent pixel information and one Evaluation unit, which is dependent on predetermined wavelength information of the objects and depending on the wavelength dependent Pixel information determines the properties of the objects, where at least two between the object and the detector arrangement wavelength-selective filters and at least two filters assigned Imaging optics for projecting object images of different Wavelengths at different local areas of the detector arrangement are arranged.
- a disadvantage of the known device is the fixed specification between local and spectral resolution. Especially in the area of Diagnostics, however, require a wide area of tissue To search for changes. Then becomes a suspicious tissue section discovered, this is then examined in more detail. However, because of the clear Diagnosis up to 16 spectral information are needed, this means one corresponding restriction of the local resolution, which in turn is the Finding difficult.
- the invention is therefore based on the technical problem of an imaging To create spectrometers with which almost simultaneously a spectral Image acquisition is possible, so that this is particularly useful for the diagnosis of Tumor tissue is suitable and that is a variable change in local and spectral resolution allowed.
- the solution to the problem results from the characteristics of the Claim 1.
- the imaging optics as Microlens array, being between the microlens array and the optical
- a zoom lens detector can be arranged as needed between one high local or spectral resolution can be switched.
- the Avoidance of beam splitters, stepper motors and interferometers allowed moreover a compact and inexpensive construction. Further advantageous embodiments of the invention result from the Dependent claims.
- the imaging spectrometer to an existing teaching connection coupled.
- This teaching connection is normally used for observation of endoscopic intervention by students or assistant doctors. Consequently the image analysis can run parallel to the doctor's work.
- the device can be designed as a module, which, once adjusted, always can be removed again, so that the device is not together with the Endoscope needs to be disinfected.
- the imaging spectrometer 1 comprises an input optic 2, a filter array 3, a microlens array 4, a zoom lens 5 and a spatially resolving, spectrally sensitive, optical detector 6.
- the filter array 3 comprises 36 filters 8, which are square are segmented.
- the filters 8, which are preferably designed as interference filters are only one for each filter 8 different Transmit spectral range of light, the bandwidth of the filter 8 approx. Is 5-20 nm.
- the advantage of interference filters over absorption filters are their sharper edges.
- the filter array 3 is flexible adaptation to different problems preferably arranged detachably in the imaging spectrometer 1, so that Depending on the application, special filter arrays 3 can be used.
- the middle arranged filters 8 are selected, for example, such that they form an RGB filter set, preferably for this purpose as an absorption filter are trained.
- the microlens array 4 is arranged behind the filter array 3, each Lens 9 of the microlens array 4 preferably exactly one filter 8 of the Is assigned to filter arrays 3 and filter array 3 and microlens array 4 are aligned with each other. In principle, however, the filter array 3 and the microlens array 4 can be interchanged in the order of arrangement.
- the microlens array 4 is preferably an active LCD microlens array trained, the optical properties by means of a control voltage in certain areas is changeable, so that after assembly a Readjustment is possible. This is particularly advantageous when on a separate input optic 2 is dispensed with and the microlens array 4 itself forms the input optics of the imaging spectrometer 1.
- the lenses 9 as achromatic lenses with a diameter of 2 up to 3 mm and a focal length of 10 to 20 mm.
- Behind the Microlens array 4 is vividly the complete object image in FIG. 36 different spectral ranges simultaneously on the optical detector mapped.
- the zoom lens 5 is arranged, wherein for better adaptation to the optical detector 6, preferably a square aperture in front of the zoom lens 5 is arranged.
- the focal length of the zoom lens 5 is from the outside changeable via a control, not shown.
- the unchangeable Image plane of the zoom lens 5 is the optical detector 6, which of the Zoom lens 5 is almost completely illuminated.
- the zoom lens 5 forms only that Output radiation of the four centrally arranged lenses 9 on the optical Detector 6, which is shown in dashed lines in FIG. Are they in the middle arranged filter 8 formed as an RGB filter set, so the object image four times on the optical detector 6, each with different Spectral information mapped in sections. If the optical detector 6 designed as a CCD matrix with 1200 X 1000 pixels, one remains local resolution of approx. 300,000 pixels. To increase the spectral The zoom lens 5 can then change its resolution in terms of focal length that the 16 centrally arranged lenses 9 on the optical detector 6 be shown what is shown in dashed lines in Fig.2, so that always approx. 75,000 pixels are still available for the spatial resolution.
- a third setting can then the entire filter array 4 on the optical Detector 6 are imaged, so that subtracting from the center RGB filter set still 32 different spectral information of the Object image can be represented, which is shown in Fig.3.
- the optical detector 6 can also use spatial resolution using a plurality of CCD matrices be formed.
- a 1-9-25 Representation can be selected.
- the one in the middle Filter 8 preferably formed with a wide pass band, so that a good spectral overview is achieved.
- the advantage of such Embodiment is the increased local resolution in the first setting same active area of the optical detector 6.
- each Spectral images are read out together from the optical detector 6, so that a corresponding color image is created.
- the microlens array 4 the associated filter array 3 and the optical Detector 6 arranged in a housing, the inner walls blackened and / or are microstructured so that the absorption capacity is almost 1.
- spectrometer 1 In addition to the particularly highlighted endoscopic, surgical microscope and calposcopic application imaging spectrometer 1 in many other areas, e.g. spectral Karyotyping of chromosomes, detection of pollutants in air, Water and soil, soil reconnaissance, bank note analysis, recording of faded historical writings and sorting of rubbish in the same color Use plastics with spectral differences.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Endoscopes (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
- Fig. 1
- eine schematische Perspektivdarstellung des bildgebenden Spektrometers mit hoher örtlicher und geringer spektraler Auflösung,
- Fig. 2
- eine schematische Perspektivdarstellung des bildgebenden Spektrometers mit mittlerer örtlicher und spektraler Auflösung und
- Fig. 3
- eine schematische Perspektivdarstellung des bildgebenden Spektrometers mit hoher spektraler und geringer örtlichen Auflösung.
Claims (9)
- Bildgebendes Spektrometer (1), umfassend eine Anzahl von Abbildungsoptiken, denen jeweils spektralselektive Filter (8) zugeordnet sind, und mindestens einen ortsauflösenden, spektralempfindlichen optischen Detektor (6), wobei durch die Abbildungsoptiken spektralunterschiedliche Objektbilder auf unterschiedliche örtliche Bereiche des optischen Detektors (6) abbildbar sind,
dadurch gekennzeichnet, daß
die Abbildungsoptiken als Mikrolinsenarray (4) ausgebildet sind und zwischen dem optischen Detektor (6) und dem Mikrolinsenarray (4) ein Zoom-Objektiv (5) angeordnet ist, mittels dessen eine variable Orts- und Spektralauflösung einstellbar ist. - Bildgebendes Spektrometer (1) nach Anspruch 1, dadurch gekennzeichnet, daß,das Mikrolinsenarray (4) als aktives, spannungsgesteuertes LCD-Mikrolinsenarray ausgebildet ist.
- Bildgebendes Spektrometer (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die spektralselektiven Filter (8) als Interferenzfilter und/oder Absorptionsfilter ausgebildet sind.
- Bildgebendes Spektrometer (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Mikrolinsenarray (4), der optische Detektor (6) und die spectralselektiven filter (8) in einem Gehäuse angeordnet sind, dessen Innenwände geschwärzt und/oder mikrostrukturiert sind.
- Bildgebendes Spektrometer (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Linsen (9) des Mikrolinsenarrays (4) als kleine Achromate ausgebildet sind.
- Bildgebendes Spektrometer (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der optische Detektor (6) als mindestens eine CCD-Matrix oder -Zeile ausgebildet ist.
- Bildgebendes Spektrometer (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die spektralselektiven Filter (8) als Filterarray (3) ausgebildet sind.
- Bildgebendes Spektrometer (1) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die mittig im Filterarray (3) angeordneten Filter (8) einen RGB-Filtersatz bilden.
- Bildgebendes Spektrometer (1) nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das bildgebende Spektrometer (1) als ein an ein Endoskop, Operationsmikroskop oder Colposkop ankoppelbares Modul ausgebildet ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19728966A DE19728966C2 (de) | 1997-03-25 | 1997-07-01 | Bildgebendes Spektrometer |
| DE19728966 | 1997-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0889307A1 EP0889307A1 (de) | 1999-01-07 |
| EP0889307B1 true EP0889307B1 (de) | 2003-09-03 |
Family
ID=7834900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98250198A Expired - Lifetime EP0889307B1 (de) | 1997-07-01 | 1998-06-08 | Bildgebendes Spektrometer |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6031619A (de) |
| EP (1) | EP0889307B1 (de) |
| AT (1) | ATE249033T1 (de) |
Families Citing this family (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7616319B1 (en) | 1995-09-20 | 2009-11-10 | James D. Welch | Spectroscopic ellipsometer and polarimeter systems |
| US7245376B2 (en) * | 1995-09-20 | 2007-07-17 | J. A. Woollam Co., Inc. | Combined spatial filter and relay systems in rotating compensator ellipsometer/polarimeter |
| US7304737B1 (en) | 1995-09-20 | 2007-12-04 | J.A. Woollam Co., Inc | Rotating or rotatable compensator system providing aberation corrected electromagnetic raadiation to a spot on a sample at multiple angles of a incidence |
| US7158231B1 (en) | 1995-09-20 | 2007-01-02 | J.A. Woollam Co., Inc. | Spectroscopic ellipsometer and polarimeter systems |
| US7336361B1 (en) | 1995-09-20 | 2008-02-26 | J.A. Woollam Co., Inc. | Spectroscopic ellipsometer and polarimeter systems |
| US7633625B1 (en) | 1995-09-20 | 2009-12-15 | J.A. Woollam Co., Inc. | Spectroscopic ellipsometer and polarimeter systems |
| JPH11201819A (ja) * | 1998-01-08 | 1999-07-30 | Minolta Co Ltd | 2次元分光特性測定装置 |
| US6920244B2 (en) * | 2000-10-06 | 2005-07-19 | Rochester Institute Of Technology | Data-efficient and self adapting imaging spectrometry method and an apparatus thereof |
| EP1377853B1 (de) * | 2001-04-10 | 2008-09-17 | President And Fellows of Harvard College | Mikrolinse zur projektionslithographie und ihr herstellungsverfahren |
| US6856466B2 (en) * | 2001-07-05 | 2005-02-15 | Science & Engineering Associates, Inc. | Multiple imaging system |
| EP1488273A2 (de) * | 2002-03-14 | 2004-12-22 | Science & Engineering Associates Inc. | Vielfach abbildendes system und verfahren zu seiner berechnung |
| DE10304267B9 (de) * | 2003-02-03 | 2005-12-15 | Carl Zeiss | Augenchirurgie-Mikroskopiesystem |
| US7092101B2 (en) * | 2003-04-16 | 2006-08-15 | Duke University | Methods and systems for static multimode multiplex spectroscopy |
| US7253900B1 (en) | 2003-05-28 | 2007-08-07 | J.A. Woollam Co., Inc. | Ellipsometer or polarimeter and the like system with multiple detector element detector in environmental control chamber including secure sample access |
| DE10341285B4 (de) * | 2003-09-04 | 2016-11-03 | Carl Zeiss Meditec Ag | Operationsmikroskop mit Spektrometer und zugehöriges Verfahren |
| US20050116942A1 (en) * | 2003-09-26 | 2005-06-02 | Vander Jagt Peter G. | Color measurement instrument |
| US7433042B1 (en) * | 2003-12-05 | 2008-10-07 | Surface Optics Corporation | Spatially corrected full-cubed hyperspectral imager |
| US7315371B2 (en) * | 2004-01-23 | 2008-01-01 | P&P Optica Inc. | Multi-channel spectrum analyzer |
| US20050234526A1 (en) * | 2004-04-14 | 2005-10-20 | Gilhuly Terence J | Systems and methods for detection of disease including oral scopes and ambient light management systems (ALMS) |
| WO2006039797A1 (en) * | 2004-10-12 | 2006-04-20 | Led Medical Diagnostics, Inc. | Systems and methods relating to colposcopic viewing tubes for enhanced viewing andexamination |
| CA2683657A1 (en) * | 2006-04-10 | 2007-10-18 | Led Medical Diagnostics, Inc. | Multipurpose diseased tissue detection devices, systems and methods |
| WO2009000078A1 (en) * | 2007-06-25 | 2008-12-31 | Led Medical Diagnostics, Inc. | Methods, systems and apparatus relating to colposcopic-type viewing extension devices |
| DE102007050253A1 (de) * | 2007-10-20 | 2009-04-23 | Dr. Johannes Heidenhain Gmbh | Detektorelement-Array für eine optische Positionsmesseinrichtung |
| WO2010148068A1 (en) | 2009-06-17 | 2010-12-23 | Battelle Memorial Institute | Fiber bundle for high efficiency, spatially resolved coupling, and spectrometer using the same |
| JP2014532873A (ja) | 2011-11-03 | 2014-12-08 | ベリフード リミテッド | エンドユーザ食品分析のための低費用分光分析システム |
| JP5910739B2 (ja) | 2012-05-28 | 2016-04-27 | 株式会社ニコン | 撮像装置 |
| CN102749139A (zh) * | 2012-06-06 | 2012-10-24 | 广州中国科学院先进技术研究所 | 一种多光谱图像捕捉系统 |
| US9334729B2 (en) * | 2012-10-04 | 2016-05-10 | Schlumberger Technology Corporation | Determining fluid composition downhole from optical spectra |
| US8975594B2 (en) * | 2012-11-09 | 2015-03-10 | Ge Aviation Systems Llc | Mixed-material multispectral staring array sensor |
| CN103234527B (zh) * | 2013-04-07 | 2015-06-24 | 南京理工大学 | 多光谱光场相机的成像方法 |
| CN105593651B (zh) * | 2013-08-02 | 2019-06-07 | 威利食品有限公司 | 光谱测定系统和方法、光谱设备和系统 |
| JP2017505901A (ja) | 2014-01-03 | 2017-02-23 | ベリフード, リミテッドVerifood, Ltd. | 分光システム、方法、および用途 |
| US9851256B2 (en) * | 2014-06-26 | 2017-12-26 | MP High Tech Solutions Pty Ltd | Apparatus and method for electromagnetic radiation sensing |
| US9810581B1 (en) | 2014-07-28 | 2017-11-07 | MP High Tech Solutions Pty Ltd | Micromechanical device for electromagnetic radiation sensing |
| WO2016063284A2 (en) | 2014-10-23 | 2016-04-28 | Verifood, Ltd. | Accessories for handheld spectrometer |
| WO2016125165A2 (en) | 2015-02-05 | 2016-08-11 | Verifood, Ltd. | Spectrometry system with visible aiming beam |
| WO2016125164A2 (en) | 2015-02-05 | 2016-08-11 | Verifood, Ltd. | Spectrometry system applications |
| US9857229B1 (en) | 2015-06-24 | 2018-01-02 | MP High Tech Solutions Pty Ltd | Fabrication method for micromechanical sensors |
| US10066990B2 (en) | 2015-07-09 | 2018-09-04 | Verifood, Ltd. | Spatially variable filter systems and methods |
| US10203246B2 (en) | 2015-11-20 | 2019-02-12 | Verifood, Ltd. | Systems and methods for calibration of a handheld spectrometer |
| EP3488204A4 (de) | 2016-07-20 | 2020-07-22 | Verifood Ltd. | Zubehör für handhaltbares spektrometer |
| US10791933B2 (en) | 2016-07-27 | 2020-10-06 | Verifood, Ltd. | Spectrometry systems, methods, and applications |
| CN106989821B (zh) * | 2017-05-16 | 2018-06-26 | 中国电子科技集团公司第四十一研究所 | 基于光纤光学成像波导的轻型光谱成像仪 |
| EP3864384A4 (de) | 2018-10-08 | 2022-06-29 | Verifood Ltd. | Zubehör für optische spektrometer |
| US11359966B2 (en) * | 2019-04-17 | 2022-06-14 | Westboro Photonics Inc. | System, method and apparatus for wide wavelength range imaging with focus and image correction |
| WO2021163807A1 (en) * | 2020-02-21 | 2021-08-26 | Tornado Spectral Systems Inc. | Optical spectroscopy probe configurations for focusing light to a portion of a sample |
| CN112345076A (zh) * | 2020-09-16 | 2021-02-09 | 北京卓立汉光仪器有限公司 | 一种可调整分辨率的摄谱系统和摄谱仪 |
| US11408767B1 (en) * | 2021-04-12 | 2022-08-09 | Viavi Solutions Inc. | Optical filter for an optical sensor device |
| CN116337778A (zh) * | 2021-12-23 | 2023-06-27 | 北京与光科技有限公司 | 光谱装置和带有光谱装置的终端设备以及工作方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19616176A1 (de) * | 1996-04-12 | 1997-10-16 | Inst Chemo Biosensorik | Verfahren und Vorrichtung zur Erkennung von Eigenschaften bewegter Objekte |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4678332A (en) * | 1984-02-21 | 1987-07-07 | Dan Rock | Broadband spectrometer with fiber optic reformattor |
| SE455646B (sv) * | 1984-10-22 | 1988-07-25 | Radians Innova Ab | Fluorescensanordning |
| SE8900612D0 (sv) * | 1989-02-22 | 1989-02-22 | Jonas Johansson | Vaevnadskarakterisering utnyttjande ett blodfritt fluorescenskriterium |
| CA2042075C (en) * | 1991-05-08 | 2001-01-23 | Branko Palcic | Endoscopic imaging system |
| KR0147401B1 (ko) * | 1994-02-23 | 1998-08-01 | 구본준 | 고체촬상소자 및 그 제조방법 |
| JPH08110486A (ja) * | 1994-10-12 | 1996-04-30 | Toshiba Corp | 内視鏡装置 |
| US5704896A (en) * | 1994-04-27 | 1998-01-06 | Kabushiki Kaisha Toshiba | Endoscope apparatus with lens for changing the incident angle of light for imaging |
| JPH08233658A (ja) * | 1995-02-24 | 1996-09-13 | Olympus Optical Co Ltd | 分光装置及び分光画像記録装置 |
| US5789735A (en) * | 1995-10-16 | 1998-08-04 | Raytheon Company | Optical system for reformatting a line image |
-
1998
- 1998-06-08 EP EP98250198A patent/EP0889307B1/de not_active Expired - Lifetime
- 1998-06-08 AT AT98250198T patent/ATE249033T1/de not_active IP Right Cessation
- 1998-07-01 US US09/108,545 patent/US6031619A/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19616176A1 (de) * | 1996-04-12 | 1997-10-16 | Inst Chemo Biosensorik | Verfahren und Vorrichtung zur Erkennung von Eigenschaften bewegter Objekte |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0889307A1 (de) | 1999-01-07 |
| ATE249033T1 (de) | 2003-09-15 |
| US6031619A (en) | 2000-02-29 |
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